One of the vital components in operating systems today
is proper driver support, derived from vendor-provided device
documentation and brought into shape for the system's driver framework.
As an example this screenshot shows Adobe Acrobat Reader (available in
the print/acroread package, running
in Linux emulation) displaying the DECchip 21143 programmer's manual,
some xterms and a vi in which the `tlp' driver is being worked on.
The machine this is on is a Dell Inspiron 3500 laptop running
Image contributed by Jason Thorpe <thorpej@NetBSD.org>